74HC190 Datasheet, PDF (6/13 Pages) NXP Semiconductors – Presettable synchronous BCD decade up/down counter

Philips Semiconductors
Presettable synchronous BCD decade
up/down counter
Product specification
74HC/HCT190
Fig.5 N-stage ripple counter using ripple clock.
Fig.6 Synchronous n-stage counter using ripple carry/borrow.
December 1990
Fig.7 Synchronous n-stage counter with parallel gated carry/borrow.
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